格安 かくやす航空 こうくう会社 かいしゃでしょう
kakuyasukōkūkaishadeshō

Noun
Desu Copula

Expresses probability in a polite manner ("probably…") of 格安航空会社

1. Low-cost airline, probably.; It's likely a low-cost airline.

Polite
Presumptive
Conjecture